package org.csu.mypetstore.web.servlets;

import org.csu.mypetstore.domain.Account;
import org.csu.mypetstore.domain.Cart;
import org.csu.mypetstore.domain.Item;
import org.csu.mypetstore.service.AccountService;
import org.csu.mypetstore.service.LogService;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

public class RemoveItemFromCartServlet extends HttpServlet {

    private static final String VIEW_CART = "/WEB-INF/jsp/cart/Cart.jsp";
    private static final String Error = "/WEB-INF/jsp/common/Error.jsp";

    private String workingItemId;
    private Cart cart;
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        workingItemId = req.getParameter("workingItemId");

        HttpSession session = req.getSession();
        cart = (Cart)session.getAttribute("cart");

        Item item = cart.removeItemById(workingItemId);

        Account account = (Account)session.getAttribute("account");
        AccountService accountService = new AccountService();
        accountService.deleteCarItemtByAccount(account,workingItemId);


        if (item == null){
            session.setAttribute("message","Attempted to remove null CartItem from Cart");
            req.getRequestDispatcher(Error).forward(req,resp);
        } else {


            if(account != null){
                HttpServletRequest httpRequest= req;
                String strBackUrl = "http://" + req.getServerName() + ":" + req.getServerPort()
                        + httpRequest.getContextPath() + httpRequest.getServletPath() + "?" + (httpRequest.getQueryString());

                LogService logService = new LogService();

                String logInfo = logService.logInfo(" ") + strBackUrl + " 移除商品"+workingItemId;
                logService.insertLogInfo(account.getUsername(), logInfo);
            }

            req.getRequestDispatcher(VIEW_CART).forward(req,resp);
        }
    }
}
